A power tool brush and a power tool having the same

Abstract

The utility model relates to the technical field of brush head, concretely is a power tool brush and has its power tool, the power tool brush includes mounting panel, connecting piece, split type brush head and fixed ring, and the one side of mounting panel is connected with connecting piece, and split type brush head includes concentric nestedly arranged first brush head, second annular brush head and third annular brush head group, and the first brush head is cylindrical, and the second annular brush head is set on the first brush head outside, and the brush head between is provided with positioning structure, and the fixed ring is screwed on the mounting panel, and the fixed ring one end has the positioning protrusion, and the positioning protrusion is contacted with the third annular brush head, and a plurality of prevent stupid structure is arranged on the fixed ring. In the utility model, split type brush head can be installed and disassembled with mounting panel through fixed ring, and it is convenient to maintain, and each part of split type brush head can be disassembled and replaced, and the outside bristle of wear and damage speed is faster, and can be maintained in time after damage, and the cost of replacing the whole brush is reduced.

Description

Technical Field

[0001] This utility model relates to the field of brush head technology, specifically to a power tool brush and a power tool having the same. Background Technology

[0002] Manual brushing for cleaning often results in incomplete removal due to insufficient friction between the brush head and the cleaning surface. Therefore, power tool brushes, such as drill brush heads, are available on the market. These brush heads are typically made of plastic and are embedded into the drill bit using bristle implantation.

[0003] Chinese Patent Publication No. CN217851772U discloses a power tool brush, comprising: a connector, one end of which is a free end, with at least a portion of the connector adjacent to the free end used to connect to the rotary drive end of a power tool; a structural support member, fixedly connected to the other end of the connector away from the free end; and an integrally formed brush head, the brush head having a bottom wall, a brush body, and side walls. The bottom wall covers the surface of the structural support member away from the connector, the brush body is formed by the bottom wall and / or the side walls extending away from the structural support member, and the side walls are formed by the bottom wall extending towards the adjacent structural support member, used to wrap and cover the outer periphery of the structural support member. This utility model provides a power tool brush that, by directly and integrally injection molding the brush head onto the structural support member, effectively wraps the brush head around the structural support member, preventing relative sliding or separation between the two and increasing the integrity of the power tool brush.

[0004] However, in the above technical solution, the brush head is directly injection molded onto the structural support component. The brush head effectively wraps around the structural support component, avoiding relative sliding or separation between the two and increasing the integrity of the power tool brush. However, when the brush head is in use, the damage rate and probability of the outer bristles are much greater than that of the inner bristles. Damage to the bristles in any area will lead to a decrease in processing quality and a reduction in equipment life. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background art by proposing a power tool brush and a power tool having the same.

[0006] The technical solution of this utility model is as follows: A power tool brush includes a mounting plate with a connector on one side; a split brush head, which consists of a first brush head, a second annular brush head, and a third annular brush head arranged concentrically, the first brush head being cylindrical, the second annular brush head being sleeved on the outside of the first brush head, and a positioning structure being provided between the brush heads; a fixing ring, which is threadedly connected to the mounting plate, one end of the fixing ring having a positioning protrusion that contacts the third annular brush head, and multiple anti-foolproof structures being provided on the fixing ring.

[0007] Preferably, the positioning structure includes a first positioning protrusion, which is distributed in multiples, connected to the outside of the first brush head, and engaging with a positioning groove on the second annular brush head; and a second positioning protrusion, which is distributed in multiples, connected to the outside of the second annular brush head, and engaging with a mating groove on the third annular brush head.

[0008] Preferably, the hardness of the bristles on the split brush head increases gradually from the inside to the outside.

[0009] Preferably, the mounting plate is connected to a polygonal positioning post, which engages with a notch in the first brush head.

[0010] Preferably, the foolproof structure consists of a fixed cylinder, a spring plunger, and a support ring. The fixed cylinder is connected to the outside of the fixed ring, the spring plunger is detachably connected to the fixed cylinder, and the fixed cylinder is threaded onto the support ring.

[0011] Preferably, the bristles of the split brush head are coated with reversible thermochromic paint.

[0012] A power tool, comprising the aforementioned power tool brush.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this invention, the split brush head can be quickly installed and disassembled with the mounting plate via a fixing ring, facilitating maintenance. At the same time, each part of the split brush head can be disassembled and replaced, and the outer bristles, which wear and are damaged more quickly, can be maintained in time after damage, reducing the cost of replacing the entire brush and avoiding the problems of reduced processing quality and shortened equipment life due to damage to some bristles. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is an exploded view of the split brush head and retaining ring.

[0017] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of a split-type brush head structure.

[0019] Reference numerals: 1. Mounting plate; 2. Connector; 3. Split brush head; 4. First brush head; 5. Second annular brush head; 6. Third annular brush head; 7. Fixing ring; 8. Positioning protrusion; 9. First positioning protrusion; 10. Positioning groove; 11. Second positioning protrusion; 12. Mating groove; 13. Positioning post; 14. Fixing cylinder; 15. Spring plunger; 16. Support ring. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown, the present invention proposes a power tool brush, which includes a mounting plate 1, a connector 2, a split brush head 3 and a fixing ring 7. The connector 2 is connected to one side of the mounting plate 1. The connector 2 is selected, but is not limited to, a hexagonal rod body. This structure is mostly used for connection in the market.

[0022] In an optional embodiment, a polygonal positioning post 13 is connected to the mounting plate 1, and the polygonal positioning post 13 engages with a notch in the first brush head 4; the polygonal positioning post 13 can limit the rotation of the split brush head 3.

[0023] The split brush head 3 consists of a first brush head 4, a second annular brush head 5, and a third annular brush head 6 arranged concentrically. The first brush head 4 is cylindrical, and the second annular brush head 5 is sleeved on the outside of the first brush head 4. A positioning structure is provided between the brush heads. The fixing ring 7 is threaded onto the mounting plate 1. One end of the fixing ring 7 has a positioning protrusion 8, which contacts the third annular brush head 6. Multiple foolproof structures are provided on the fixing ring 7.

[0024] In an optional embodiment, the bristle hardness on the split brush head 3 increases gradually from the inside to the outside; bristles with different hardness can achieve different effects.

[0025] In an optional embodiment, the bristles of the split brush head 3 are coated with a reversible thermochromic paint; the reversible thermochromic paint will change color at a certain temperature, and the color change will remind the staff that the current temperature is too hot, so that the staff can notice it in time and extend its service life.

[0026] Example 2

[0027] like Figures 2-4As shown, the present invention proposes a power tool brush. Compared with Embodiment 1, this embodiment describes the detailed structure of the fixing ring 7. The positioning structure includes a first positioning protrusion 9 and a second positioning protrusion 11. Multiple first positioning protrusions 9 are distributed around the circumference. The first positioning protrusions 9 are connected to the outside of the first brush head 4. The first positioning protrusions 9 cooperate with the positioning groove 10 opened on the second annular brush head 5. Multiple second positioning protrusions 11 are distributed around the circumference. The second positioning protrusions 11 are connected to the outside of the second annular brush head 5. The second positioning protrusions 11 cooperate with the mating groove 12 opened on the third annular brush head 6.

[0028] In an optional embodiment, the foolproof structure consists of a fixed cylinder 14, a spring plunger 15, and a support ring 16. The fixed cylinder 14 is connected to the outside of the fixed ring 7, and the spring plunger 15 is detachably connected to the fixed cylinder 14. The fixed cylinder 14 is threaded onto the support ring 16. The spring plunger 15 is bolted to the fixed cylinder 14. The spring plunger 15 restricts the position of the split brush head 3 by its own telescopic function, preventing the bristles from being excessively squeezed and damaged during rotation.

[0029] Example 3

[0030] like Figures 1-4 As shown, the present invention proposes a power tool, including the power tool brush in Embodiment 1 or Embodiment 2.

[0031] In summary, when using this utility model, the operator can connect the connector 2 to the clamping structure on the power tool. When the power tool drives the connector 2 and the mounting plate 1 to rotate, the split brush head 3 rotates synchronously to perform deburring or cleaning work. When it remains in a fixed position for a long time or when the workpiece has poor heat dissipation, the reversible thermochromic paint coated on the bristles can remind the operator of the current bristle status. At the same time, the foolproof structure can limit the distance between the split brush head 3 and the workpiece surface to prevent excessive compression that could cause bristle deformation and accelerate heat accumulation. When the bristles are damaged, the operator can rotate the fixing ring 7 to remove it, and then remove and replace the various parts of the split brush head 3. Then, the first positioning protrusion 9 and the second positioning protrusion 11 are used to reassemble and fit it onto the positioning post 13, and the fixing ring 7 is connected for quick replacement.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A power tool brush, characterized in that, include Mounting plate (1), with a connector (2) attached to one side; The split brush head (3) consists of a first brush head (4), a second annular brush head (5) and a third annular brush head (6) arranged concentrically. The first brush head (4) is cylindrical, and the second annular brush head (5) is sleeved on the outside of the first brush head (4). A positioning structure is provided between the brush heads. The fixing ring (7) is threaded onto the mounting plate (1). One end of the fixing ring (7) has a positioning protrusion (8), which contacts the third annular brush head (6). Multiple anti-foolproof structures are provided on the fixing ring (7).

2. A power tool brush according to claim 1, characterized in that, Positioning structure includes The first positioning protrusion (9) is distributed in multiple ways. The first positioning protrusion (9) is connected to the outside of the first brush head (4). The first positioning protrusion (9) cooperates with the positioning groove (10) opened on the second annular brush head (5). The second positioning protrusion (11) is distributed in multiple ways. The second positioning protrusion (11) is connected to the outside of the second annular brush head (5). The second positioning protrusion (11) is engaged with the mating groove (12) opened on the third annular brush head (6).

3. A power tool brush according to claim 1, characterized in that, The hardness of the bristles on the split brush head (3) increases gradually from the inside to the outside.

4. A power tool brush according to claim 1, characterized in that, The mounting plate (1) is connected to a polygonal positioning post (13), which is matched with the notch opened in the first brush head (4).

5. A power tool brush according to claim 1, characterized in that, The foolproof structure consists of a fixed cylinder (14), a spring plunger (15) and a support ring (16). The fixed cylinder (14) is connected to the outside of the fixed ring (7). The spring plunger (15) is detachably connected to the fixed cylinder (14). The fixed cylinder (14) is threadedly connected to the support ring (16).

6. A power tool brush according to claim 1, characterized in that, The bristles of the split brush head (3) are all coated with reversible thermochromic paint.

7. A power tool, characterized in that, Includes the power tool brush as described in any one of claims 1-6.

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